Insulator.



L. SENBERGER.

, NSJLATORA APrucATsoN mno FEB.10.192.

1,13@ Patented Dec. 28, 19N).

WITNESSES l LOUIS STEINBERGER, 0F BROOKLYN, NEW YORK.

INSULATOR.

Application led February 10, 1912.

To all whom it may concern.' i

Be it known that I, LoUrs STEINBERGER, residing at Brooklyn, in the county of Kings and- State 4of New York, have invented certain new andxuseful Improvements in Insulators,I of Whiclhrthe following is a specification.

This invention relates to improvements in insulators, particularly such as are used in connection with high potential transmission lines and which are to be rigidly secured to al suitable support or supports.

Among the objects of the inventioninay be stated: I. To'provide an insulator for the purpose referred to, to' which I give a de gree of strength commensurate with the use of metal, but without proportionate danger of arcing, and inwhich mechanical strains.

are well distributed. II. Toprovide an insulator attaining the object above stated partly through the securing means employed and their relation to the insulator body. III. To provide. in the insulator strengthened portions 'for receiving cables or other members which may pull upon the insulator. IV. To provide an insulator of such construction that it may be rigidly supportedr at either one end or both ends, as desired. l V. To provide an insulator construction with a plurality of lseparate members for connecting it to a support or'upports,y saidmembers extending entirely through thefinsulator body. VI. To provide an in-l sulator with a removable member extending entirely through the insulator, said member being provided at cach end with means for4 securing it to a support.

Other objects and aims In the accompanying drawings, which are to be taken as a part of this specification, and which' shew a merely illustrative form of the invention: Figure l is a central vertical section, with certain parts in elevation, showing an embodiment of my invention as in its supported position; Fig. 2 is a bottom plan view of the insulator of Fig. l, detached from its supports; Fig. 3 is a detail -Speci'caton of Letters Patent.

of the invention, more or less broad than those set out above,

d in part specifically' Patented Dec. 2s, 1915. Serial No. 676,879.

of one of the take the strain of the cables; Fig. 4 isa central vertical section of the subject-matter of Fig. 3;-and Fig. isa view, partly in elevation and partly in section showing how the attaching parts of the insulator may be secured topa support at one end only.

Referring to the numerals on the drawings, I have shown at 6 an insulator body, which may be of general cylindrical form. The insulator body 6 may be provided With a pluralityof sheds 7, 8 and 9, of different sizes,A the largest being at the 4top and the smallest at the bottom. Integral with the shed 9 and with the insulator body 6 is a skirt 10 which extends downwardly from the insulator body. The opposite end of the insulator body may well be plane, as shown in Figs. 1 and 5. Y

Encirclingthe insulator body transversely are strengthening membersl 11, which in the illustrated embodiment take the form of rings having some ,such cross-sectiony as shown, for instance, channeled rings, with the bulge inward, and having lateral flanges whereby the effect of the cable strains is distributed. Preferably, these members are continuous rings, 'though obviously they may be non-'continuous or in section, and they may be molded in the body of the insulator, or otherwise vsecured thereto, as desired. These strengthening members 11 are located between the sheds 7 and 8 and 8 and 9, respectively, and serve to define and reinforce the portions ofthe insulatorbody Whichptake the strain of cables 12 or the like, said cables straining in opposite directions.,

Asa means for securing the insulator body rigidly to a'support, I provide a pair of members that eXtend entirely through the ,insulator body, transversely of the line of strain of the cables. said pair of members being accommodated in appropriate spaced apertures, that extend therethrough from the plane top of the insulator body to the opposite end thereof that is surrounded by the skirt 10. If desired, these attaching members may take the form of bolts 15, headed at one end and threaded at the other, which bolts` when the insulator body has been brought to-position between spaced supporting arms 16, may be passed through the apertures in the insulator body. In

vstrengthening members that the apertures through the insulator body by .members 17, having means of tubular members 17 that project` beyond the opposite ends of the body, these tubular members being rigidly molded in the' material of the body. In such case I may thread the tubes exteriorly at their ends; when the headed bolts 15 are dropped into place they'may be rigidly held rela'- tively to the arms 16 by means of nuts 18,

. ends of the insulator body. molded or movinsulator,

which it depends.

able in the apertures of the body, with which ends are engaged nuts 18. In case I wish to secure the insulator body to each of a pair of spaced arms 16, as in I ig. l', the nuts may engage the top of the upper arm and the lower face of the lower arm. If the space between the arms `is greater than the length of the insulator body, I may cause the plane top of the insulator to abut the under face of the upper arm, and cause it lo hold that position by means of nuts 19 engaging the lower end of the insulator within the skirt 10. And indeed similar nuts 19 might engage the plane end of the insulator body also, so as to Ahold the insulator spaced lfrom both arms 1G.

The members 17, whether employed as direct attaching members, or as auxiliary attaching means with the bolts 15, being tubular, are of a moreor less elastic nature transversely of their length so that any eX- pansion or contraction of the ctile material within which they are embedded may be accommodated vithoutdanger of fracture to the material, as might follow werev the members 17 solid.

.In Fig. 5 I have shown how the insulator may be secured to a single arm 16, from I-Iere Ihshow tubes 1t exE tending through the insulator body. with their opposite ends extcriorly threaded` nuls 19 on the upper ends of the tubesengaging the arm 16, against the lower face of which abu'ts the plane top of the insulator body, and other nuts 19 on the lower ends of the tubes engaging the lower end of the insulator. within skirt 10. Obviously, with respect to Fig. 5. I may use a combination of tubesand bolts. as in Fig. 1. And in every case. the securing members whether tubes or bolts, may be molded or slidallei'n their apertures. It is of course advantageous to have the apertures that extend ihriiugh the in the line of a diameter of the insulator. which line is also the line of strain of the cables.

The construction described-has the adVantage that it is most readily put. into and removed from position, and affords a maximum of strength and rigidity in resisting strains, and that it is also readily adaptable to the varying requirements arising in practice.

It will be understood that Ido not limit myself to the particular form of insulator herein shown, nor to the exact form or arrangement or number of the securing members, nor to the use of any particular material. I prefer, however, for the insulator body, to employ the insulating material known in the art as Electrose.

As many changes could be ymade in the above construction without departing from the scope thereof, as defined in the following claims, it is intended that alll matter contained in the above description, or shown in the accompanying drawings, shall be interpreted as illustrative only and not in a limiting sense.

Having thus described my invention what I claim as new and desire to secure by Letters Patent, is: i

^ 1. An insulator comprising a body of 1nsulating material having a plurality of apertures extending therethrough, tubular members extending through said apertures, and

attaching members extending through said tubular members and provided at their ends with means for securing them to a support.

2. An Iinsulator comprising a body portion of insulating material having an aperture extending therethrough; and a plurality of separately formed attaching members extending through said aperture and projecting therebeyond whereby the insulator-may be connected to a support, one of said members being tubular and another of said members extending through the hollow vof the first.

3. An insulator comprising a substantially 'cylindrical body portion of insulating material; having an aperture extending therethrough; a tubular reinforcing member within said aperture, retaining means for the insulator extending through the hollow of` said tubular reinforcing member; and an annular reinforcing member fitted upon the outer surface of said body adapted to accommodate cables or the like.

4. An insulator comprising ay body of insulating material; a'tiibular metallic reinforcing member embedded therein projecting beyond relatively opposite surfaces thereof and being adapted to receiv'e retaining means for holding such insulator in fixed relation to'a support', and the projecting portions of `said reinforcii'ig member having means for retaining` said body in an adjusted position on said. reinforcing member.

5. Ari-insulator comprising a body of inextended beyond said/aperture support, the other of said attaching memsulating material having an aperture extending therethrough, an attaching memberextending through said aperture having its opposite ends threaded and projecting from the opposite ends of the body, said attaching member being tubular to form a reinforcing means for the body, means engaging the threads of said attaching member to retain the body thereon,and auxiliary attaching means extending through said tubular attaching member.

' 6. An insulator comprisingoa body of insulating material having an aperture therethrough, a tubular member co-axial' with saidaperture extending from the body at one end of the aperture, a rod extending through said aperture and through the tubular member being longitudinally movable therein, adjustable means engaging between one end portion of said rod and said tubular member for connecting the insulator to a support, and means at the opposite end of the tubular member for engaging a second support,- the adjustable means at the first.

mentioned end of said rod being adapted to move the rod relatively longitudinally to cause the support engaging means at thesecond end of the rod to clamp the insulating body against the second support. -7. An insulator comprising a. body portion of insulating material, having an apervture, extending therethrough, and a plurality of separately formed attaching members extending through said aperture, the opposite ends of one of said attaching members being bers having heads thereon beyondthe opposite ends of -the first Vattaching member, said heads comprising means for engaging said support to retain the first attaching member in attached relation to the support.

Copies of this patent ,may be obtained for ve cents each,

jport.

to engage a 8. An insulator comprising a body portion lof insulating material having an aperture extending therethrough, and a plurality of separately formed attaching member-s extending through said aperture, one end of ture formed therethrough, an attaching member extending through the aperture in said,insulator and engaging inthe aperture in said support, and means extending through the aperture in the insulato1^and engaging said support to .retain said attaching member in attached relation to the supl0. The combination with an apertured support, of an insulator to be supported therefrom, having an aperture therethrough, an attaching member extending through the aperture' in said insulator and projecting therefrom into the aperture in said support,

said attaching member being tubular, and

means extending through 'the opening in said tubular attaching member and extending beyond the end of said tubular attaching memberinto engagement with said support to retain said attaching member against detachment from 'the aperture in said support.

In testimony whereof- I alix my signature in the presence of two witnesses.

LOUIS STEIN BERGER.

Witnesses: i

NATHaLm THOMPSON,

Y HELEN HENRY.

by addressing the Uommissioner'ot Patents.

Washington, D. C." 

